海洋测绘2011，Vol.31Issue(5)：34-37,4.
基于半参数回归的DDM内插方法
A Method for Interpolating Moving Surface Based on Semiparametric Regression
摘要
Abstract
This paper proposed a method for interpolating DDM based on semiparametric regression. Data error of raw depth and approximation error of interpolation function are respectively regarded as one part of random error and another part of systematic error in DDM, and a semiparametric regression model for interpolating DDM is constructed; regularizing matrix and smoothing parameter are respectively created by distance method and L-curve method; approximation error of interpolation function is estimated on any node using a method for weighted meaning with points selected by azimuth. Experimental results demonstrate that the proposed method has improved the quality of DDM; besides, the more complex the seabed terrain is, the higher the proposed method has improved the quality of DDM.关键词
数字水深模型/半参数回归/逼近误差/移动曲面法Key words
digital depth model/semiparametric regression/approximation error/moving surface method分类
天文与地球科学引用本文复制引用
贾帅东,张立华,董晓光..基于半参数回归的DDM内插方法[J].海洋测绘,2011,31(5):34-37,4.基金项目
国家863计划项目(2009AA12Z202) （2009AA12Z202）
国家自然科学基金项目(40801189). （40801189）
